maybe your problem is the variable bitrate or too low fps. or your engine was not able to show your hitfilm comp/edit in full-quality. raise to half or quarter res (upper right) or export a short clip to show on an player.

there are a lot of recovery tools. example: pcinspector, recuva, easyuse recover, testdisk...
There are also professional data recovery services, google will help you to find some services at your location.
But be careful, every time the recovery-…

you must make a hitfilm-account. then use the same email-adress and passwort for activate hitfilm. possible that your browser blocks "new windows" (noscript, adblock ect.), use a other browser in this case. other possibilities: your pc are under the…

a while ago i was have a boris-text bug, the hitfilm-staff means: reinstall hitfilm, and the bug was really gone.
do you have the boris-plane at same comp at the rest or in a subcomp? maybe the demult effect will help to take out the black-plane-co…

for 2d arrow (last youtube clip) use a colorplane with a arrowmask and animate the mask (path) with keyframes..
for3d arrows: animate an do it on blender, then import this blender stuff as 3d object.
maybee you can use a particle-trail (or the pre…

maybee this helps...
open with ctrl and mouseclick the .hfp on desktop, select information, and select "open with..." and at the bottom "other programm", select now the the new hitfilm-icon at new location.

use the "variable" bitrate.... this bug is since version hitfilm4 and no one of the devs have a solution.. my pc: win7, 970gtx, 16gb ram and 1tb ssd.
http://hitfilm.com/forum/discussion/40877/pixel-mud-error-when-rendering-mp4#latest

use the environnement effect for background http://www.youtube.com/watch?v=IpbpZfMTjEk&feature=youtube_gdata_player https://www.youtube.com/watch?v=esP4VxMyG3s
in hitfilm2017 they called 360°video transform